date_8h-source.html

FastDb是高效的内存数据库系统

00118         <span class="keywordflow">if</span> (m &lt; 10) { 
00119                 m += 3;
00120         } <span class="keywordflow">else</span> {
00121                 m -= 9;
00122                 y++;
00123         } <span class="comment">/* else */</span>
00124         month = m;
00125         day = d;
00126         year = y;
00127     } <span class="comment">/* mdy */</span>
00128 
00129     <span class="keywordtype">int</span> day() {
00130         <span class="keywordtype">int</span> month, day, year;
00131         MDY(year, month, day);
00132         <span class="keywordflow">return</span> day;
00133     }
00134 
00135     <span class="keywordtype">int</span> month() {
00136         <span class="keywordtype">int</span> month, day, year;
00137         MDY(year, month, day);
00138         <span class="keywordflow">return</span> month;
00139     }
00140 
00141     <span class="keywordtype">int</span> year() {
00142         <span class="keywordtype">int</span> month, day, year;
00143         MDY(year, month, day);
00144         <span class="keywordflow">return</span> year;
00145     }
00146 
00147     <span class="keywordtype">int</span> dayOfWeek() { 
00148         <span class="keywordflow">return</span> (jday % 7) + 1;
00149     }
00150 
00151     <span class="keywordtype">char</span>* asString(<span class="keywordtype">char</span>* buf, <span class="keywordtype">char</span> <span class="keyword">const</span>* format = <span class="stringliteral">"%d-%M-%Y"</span>)<span class="keyword"> const </span>{ 
00152         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* dayName[] = { <span class="stringliteral">"Mon"</span>, <span class="stringliteral">"Tue"</span>, <span class="stringliteral">"Wen"</span>, <span class="stringliteral">"Thu"</span>, <span class="stringliteral">"Fri"</span>, <span class="stringliteral">"Sat"</span>, <span class="stringliteral">"Sun"</span> };
00153         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* monthName[] = { <span class="stringliteral">"Jan"</span>, <span class="stringliteral">"Feb"</span>, <span class="stringliteral">"Mar"</span>, <span class="stringliteral">"Apr"</span>, <span class="stringliteral">"May"</span>, <span class="stringliteral">"Jun"</span>, <span class="stringliteral">"Jul"</span>,
00154                                            <span class="stringliteral">"Aug"</span>, <span class="stringliteral">"Sep"</span>, <span class="stringliteral">"Oct"</span>, <span class="stringliteral">"Nov"</span>, <span class="stringliteral">"Dec"</span> };
00155         <span class="keywordtype">int</span> month, day, year;
00156         MDY(year, month, day);
00157         <span class="keywordtype">char</span> ch, *dst = buf;
00158         <span class="keywordflow">while</span> ((ch = *format++) != <span class="charliteral">'\0'</span>) { 
00159             <span class="keywordflow">if</span> (ch == <span class="charliteral">'%'</span>) {
00160                 ch = *format++;
00161                 <span class="keywordflow">switch</span> (ch) { 
00162                   <span class="keywordflow">case</span> <span class="charliteral">'d'</span>: dst += sprintf(dst, <span class="stringliteral">"%02u"</span>, day ); <span class="keywordflow">continue</span>;
00163                   <span class="keywordflow">case</span> <span class="charliteral">'D'</span>: dst += sprintf(dst, <span class="stringliteral">"%s"</span>,   dayName[jday % 7]); <span class="keywordflow">continue</span>;
00164                   <span class="keywordflow">case</span> <span class="charliteral">'m'</span>: dst += sprintf(dst, <span class="stringliteral">"%02u"</span>, month); <span class="keywordflow">continue</span>;
00165                   <span class="keywordflow">case</span> <span class="charliteral">'M'</span>: dst += sprintf(dst, <span class="stringliteral">"%s"</span>,   monthName[month - 1]); <span class="keywordflow">continue</span>;
00166                   <span class="keywordflow">case</span> <span class="charliteral">'y'</span>: dst += sprintf(dst, <span class="stringliteral">"%02u"</span>, year - 1900); <span class="keywordflow">continue</span>;
00167                   <span class="keywordflow">case</span> <span class="charliteral">'Y'</span>: dst += sprintf(dst, <span class="stringliteral">"%04u"</span>, year); <span class="keywordflow">continue</span>;
00168                   <span class="keywordflow">default</span>: *dst++ = ch;
00169                 }
00170             } <span class="keywordflow">else</span> { 
00171                 *dst++ = ch;
00172             }
00173         }
00174         *dst = <span class="charliteral">'\0'</span>;
00175         <span class="keywordflow">return</span> buf;
00176     }
00177 
00178 
00179     CLASS_DESCRIPTOR(dbDate, 
00180                      (KEY(jday,INDEXED|HASHED), 
00181                       METHOD(year), METHOD(month), METHOD(day), METHOD(dayOfWeek)));
00182 
00183     <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> operator == (<span class="keywordtype">char</span> <span class="keyword">const</span>* field) { 
00184         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00185         expr = <a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>),<span class="stringliteral">"="</span>,jday;
00186         <span class="keywordflow">return</span> expr;
00187     }
00188     <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> operator != (<span class="keywordtype">char</span> <span class="keyword">const</span>* field) { 
00189         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00190         expr = <a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>),<span class="stringliteral">"&lt;&gt;"</span>,jday;
00191         <span class="keywordflow">return</span> expr;
00192     }
00193     <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> operator &lt; (<span class="keywordtype">char</span> <span class="keyword">const</span>* field) { 
00194         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00195         expr = <a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>),<span class="stringliteral">"&gt;"</span>,jday;
00196         <span class="keywordflow">return</span> expr;
00197     }
00198     <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> operator &lt;= (<span class="keywordtype">char</span> <span class="keyword">const</span>* field) { 
00199         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00200         expr = <a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>),<span class="stringliteral">"&gt;="</span>,jday;
00201         <span class="keywordflow">return</span> expr;
00202     }
00203     <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> operator &gt; (<span class="keywordtype">char</span> <span class="keyword">const</span>* field) { 
00204         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00205         expr = <a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>),<span class="stringliteral">"&lt;"</span>,jday;
00206         <span class="keywordflow">return</span> expr;
00207     }
00208     <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> operator &gt;= (<span class="keywordtype">char</span> <span class="keyword">const</span>* field) { 
00209         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00210         expr = <a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>),<span class="stringliteral">"&lt;="</span>,jday;
00211         <span class="keywordflow">return</span> expr;
00212     }
00213     <span class="keyword">friend</span> <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> between(<span class="keywordtype">char</span> <span class="keyword">const</span>* field, dbDate&amp; from,
00214                                      dbDate&amp; till)
00215     { 
00216         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00217         expr=<a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>),<span class="stringliteral">"between"</span>,from.jday,<span class="stringliteral">"and"</span>,till.jday;
00218         <span class="keywordflow">return</span> expr;
00219     }
00220 
00221     <span class="keyword">static</span> <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> ascent(<span class="keywordtype">char</span> <span class="keyword">const</span>* field) { 
00222         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00223         expr=<a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>);
00224         <span class="keywordflow">return</span> expr;
00225     }   
00226     <span class="keyword">static</span> <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> descent(<span class="keywordtype">char</span> <span class="keyword">const</span>* field) { 
00227         <a class="code" href="classdbQueryExpression.html">dbQueryExpression</a> expr;
00228         expr=<a class="code" href="classdbComponent.html">dbComponent</a>(field,<span class="stringliteral">"jday"</span>),<span class="stringliteral">"desc"</span>;
00229         <span class="keywordflow">return</span> expr;
00230     }   
00231 };
00232 
00233 <span class="preprocessor">#endif</span>
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